Nokia N8 - Renault Radiosat Bluetooth

Question

I have my Nokia N8 paired with my Renault Radiosat Bluetooth Handsfree Kit, built into my car.
The problem is that the phone is randomly disconnecting and reconnecting again. Could someone please tell me why this is happening and how I can solve this issue? My previous Sony Ericsson which was years old had never experienced this sort of issue.
From the Renault website:
Why does my telephone disconnect and reconnect itself to the system from time to time when I am driving my vehicle?
Some telephones have standby or energy-saving functions that operate in Bluetooth mode. These functions may cause inadvertent disconnection when used with the multimedia system. For optimum and safe use of the multimedia system we advise you to deactivate these functions. For details on how to do this, please refer to the instructions manual for your telephone.
So, I suppose my question is how do I disable 'Standby' or 'Energy-Saving' mode on the Nokia N8?
Many thanks!!

Answer 1

I also have disconnections problem but I've found workaround. 
If you play music via bluetooth for reasonable time 5-10 min and then change to radio, phone stops disconnecting.
It's not very useful as some time I prefer to listen radio.
Another way is much better - when phone is connected (about 1 min for me) go to 
Phone->Manage phonebook->Mobile phonebook->Add contact (sorry, I don't remember exactly menu items but you can guess)
You get note that radio is waiting for contact to be sent via bluetooth. Do nothing for 5-10 sec and click "QUIT". The message telling that phone is connected blinks on the screen and you are done. Using controls on the steering wheel this procedure is quick and not very bothering. Also, radio does what it does during this operation.
For me bluetooth connection stays on till radio is off and on again.
Hope this will help until somebody find the fix.